WHITE INK FOR ACTIVE RAY-CURABLE INKJET AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a white ink for active ray-curable inkjet, which has high ejection stability and secures sufficient weatherability in a cured film thereof.

SOLUTION: The white ink for active ray-curable inkjet includes: an inorganic white pigment which is surface-treated with a metal oxide; a polymerizable compound; and a photopolymerization initiator. The metal oxide is a metal oxide selected from the group consisting of alumina, silica and zirconia, the surface treatment amount by the metal oxide is 0.3-0.8 mass%, and the amount of Na ions contained in the ink is 15 mg/kg or less.

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